DIAGNOSTICS − POWER TILT AND POWER TELESCOPIC STEERING 05−701

COLUMN 05I0T−01

DTC B2610 TILT POSITION SENSOR OR TILT MOTOR

CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION
Tilt Up Tilt Down
Mechanical Mechanical The tilt motor is operated by the power source voltage supplied
Lock Position Lock Position from the multiplex tilt & telescopic ECU and makes the steering
column tilt up and down. The tilt position sensor (hole IC) in the
Operation Range tilt motor detects the tilt angle of the steering column and out-
puts a signal to the CPU based on that tilt.
Tilt Up Limit Tilt Down HINT:
Position Limit Position Limit positions can be confirmed on the screen of the hand−
F03815 held tester.
DTC No. Detection Item Trouble Area
S Tilt steering gear assy w/ motor
Tilt operation stops within the operation range while in opera- S Actuator power source circuit
B2610
tion. S Tilt position sensor or tilt motor circuit
S Multiplex tilt & telescopic ECU

WIRING DIAGRAM

T6
Power Tilt Motor J10 Multiplex Tilt &
(w/ Tilt Position Sensor) J/C Telescopic ECU
(*3) A
15
5 G A
COM1 P8 COM1
6
6 R
F/B1 P8 F/B1
16
4 W
B1 P8 B1
7
1 B
A1 P8 A1
1 2 14
7 L−Y * Y*
SG1 P8 SG1
1 5
8 P* B−O *2
SIN1 P8 SIN1
IG *1
13
IK *2 3 B−R *
1
B−L *2
S5V1 P8 S5V1

W−B

*1: LHD
*2: RHD
*3: Shielded
F46237
05−702 DIAGNOSTICS − POWER TILT AND POWER TELESCOPIC STEERING
COLUMN

INSPECTION PROCEDURE
HINT:
First, troubleshoot the actuator power source circuit (see page 05−719) when DTCs B2610 and B2611 are
output simultaneously.
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER II

(a) Connect the intelligent tester II to the DLC3.

ON (b) Turn the ignition switch to the ON position and turn the in-
Up telligent tester II on.
(c) Select ”Tilt Operation” from the ACTIVE TEST, and per-
Intelligent
Tester II
form the test using the intelligent tester II.
Down (d) Check that the steering wheel tilts up (down) when the
ACTIVE TEST is carried out.
Vehicle Condition/
Item Diagnostic Note
F46442
Test Details
Tilt operation/
Tilt Operation −
UP or DOWN

OK:
The steering column tilts up and down in accordance
with the intelligent tester II operation.
OK Go to step 4

NG
 DIAGNOSTICS − POWER TILT AND POWER TELESCOPIC STEERING 05−703
COLUMN

2 CHECK HARNESS AND CONNECTOR(MULTIPLEX TILT & TELESCOPIC ECU −

POWER TILT MOTOR)

Multiplex Tilt & Telescopic ECU: (a) Disconnect the P8 connector from the multiplex tilt & tele-
scopic ECU.
(b) Disconnect the T6 connector from the power tilt motor.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester Connection Condition Specified Condition
A1 P8 P8−16 (B1) − T6−4 (B1) Always Below 1 W
P8−7 (A1) − T6−1 (A1) Always Below 1 W
B1
P8−15 (COM1) −
Always Below 1 W
T6−5 (COM1)
COM1 P8−16 (B1) −
Always 10 kW or higher
Body ground

Power Tilt Motor: P8−7 (A1) −

Always 10 kW or higher
Body ground
P8−15 (COM1) −
Always 10 kW or higher
Body ground

T6
A1
B1

COM1 NG REPAIR OR REPLACE HARNESS OR

F46248
F46413 F46417 CONNECTOR

OK
05−704 DIAGNOSTICS − POWER TILT AND POWER TELESCOPIC STEERING
COLUMN

3 INSPECT MULTIPLEX TILT & TELESCOPIC ECU

Power Tilt (a) Connect the P8 connector to the multiplex tilt & telescopic
Motor: ECU.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table
T6 below.
A1 CAUTION:
B1
S Pay caref ul at t ent i on because hi gh vol t age AC
(approximately 200 V) is used.
COM1 S Make sure that the tester setting is in the AC range.
F46413

Standard:
Condition
Tester Connection Specified Condition
(Manual switch position)
T6−1 (A1) − T6−5 (COM1) Tilt up or tilt down 190 to 230 V (AC)
T6−4 (B1) − T6−5 (COM1) Tilt up or tilt down 190 to 230 V (AC)

NG REPLACE MULTIPLEX TILT & TELESCOPIC

ECU (SEE PAGE 50−26)

OK

REPLACE POWER TILT MOTOR (SEE PAGE 50−10)

 DIAGNOSTICS − POWER TILT AND POWER TELESCOPIC STEERING 05−705
COLUMN

4 CHECK HARNESS AND CONNECTOR(MULTIPLEX TILT & TELESCOPIC ECU −

TILT POSITION SENSOR)

Multiplex Tilt & Telescopic ECU: (a) Disconnect the P8 connector from the multiplex tilt & tele-
scopic ECU.
(b) Disconnect the T6 connector from the power tilt motor (tilt
position sensor).
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
P8
SIN1 Tester Connection Condition Specified Condition
P8−13 (S5V1) −
Always Below 1 W
T6−3 (S5V1)
P8−5 (SIN1) −
SG1 S5V1 Always Below 1 W
T6−8 (SIN1)
P8−14 (SG1) −
Always Below 1 W
Power Tilt Motor: T6−7 (SG1)
P8−13 (S5V1) −
Always 10 kW or higher
Body ground
P8−5 (SIN1) −
Always 10 kW or higher
Body ground
P8−14 (SG1) −
Always 10 kW or higher
Body ground
T6
S5V1
SIN1

F46248
SG1 NG REPAIR OR REPLACE HARNESS OR
F46413 F46417 CONNECTOR

OK

5 INSPECT MULTIPLEX TILT & TELESCOPIC ECU

Power Tilt (a) Connect the P8 connector to the multiplex tilt & telescopic
Motor: ECU.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table
T6 below.
S5V1 Standard:
SIN1
Tester Connection Condition Specified Condition
T6−3 (S5V1) −
SG1 Ignition switch ON 4.5 to 5.5 V
F46413
T6−7 (SG1)
T6−8 (SIN1) −
Ignition switch ON 4.5 to 5.5 V
T6−7 (SG1)

NG REPLACE MULTIPLEX TILT & TELESCOPIC

ECU (SEE PAGE 50−26)

OK
05−706 DIAGNOSTICS − POWER TILT AND POWER TELESCOPIC STEERING
COLUMN

6 INSPECT POWER TILT MOTOR(TILT POSITION SENSOR)

(a) Connect the T6 connector to the power tilt motor.

P8 (b) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester Connection Condition Specified Condition
P8−5 (SIN1) − 4.5 to 5.5 V (Pulse HI)
Tilt up or tilt down
P8−14 (SG1) Below 1 V (Pulse LOW)
SIN1
SG1
F46247 NG REPLACE POWER TILT MOTOR
(SEE PAGE 50−10)

OK

REPLACE MULTIPLEX TILT & TELESCOPIC ECU (SEE PAGE 50−26)